Some time ago, the late and lamented John Stevenson wrote an article in MEW on making new "rubber" wipers using a proprietary product for one one of his lathes.
From memory it entailed making a simple pair of inner and outer dies and casting the "rubber" between then until cured, ready for fitting to the lathe.
I would not use compressed air to clean a machine, because of the risk of forcing particles of swarf under a wiper.
If this happens, every movement will be lapping the very surface that the wiper is supposed to protect. As Apprentices, we were told never to use a blowgun to clean the machine, only cloths, which could be replaced.
Howard